Abstract

目的 分析原发性骨骼肌非霍奇金淋巴瘤(NHL)的影像学表现,以期提高对其的认识.方法 经病理证实的原发性骨骼肌NHL 5例,均为B细胞来源.其中3例有MR和CT检查,1例仅有CT检查,1例仅有MR检查.2例有X线平片,2例有核素骨显像.结果 所有患者均表现为受累肌肉弥漫性肿胀,肌肉轮廓可辨.4例CT平扫密度均匀,与未受累肌肉相近;增强扫描呈轻度强化2例,中等强化1例,强化密度均匀.MR扫描4例,平扫T1WI与周围肌肉相比呈稍低信号,T2WI信号明显高于周围未受累的肌肉.肿瘤内部的信号均匀,未见明显液化坏死区.增强扫描2例肿瘤为均匀强化,强化信号明显高于周围正常肌肉信号.X线平片2例显示骨质未被破坏.核素骨显像2例显示软组织肿块浓聚,骨髓的信号未见异常.结论 原发性骨骼肌NHL的影像学表现有一定的特点,MRI是其最佳的影像学检查方法。

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